Blower



Sept. 4, 1928. Y 1,683,474 G. B. LINDERMAN, .1R

BLOWER Filed March 4, 192'? Patented Sept. 4, 1928.

UNITED STATES resine rarest orifice.

GARR/ETT B. LINDERVIAN, JR., OF ERIE, PENNSLYVANIA, ASSXGNOR TO AMERICANMETER COMPANY, NCGBEORATED, OF Nw "vif YORK,

DELAWARE.

N. Y., A CORPORATION OF BLOWER.

Original application filed May 27, 1824, Serial No. 716,223. Dividedand. this application filed March 4,

rlhe present invention relates to an improvement in blowers, one objectbeing to provide a device of this general character which can beutilized for the compression of fluids such as gases, air and the like,with a minimum of heat and turbulence. This application is a division ofmy pending application, Serial No. 716,223, filed May 27, 1924.

An embodiment of my invention is illus trated `in the drawingaccompanying the present specification, the' single figure of whichrepresents a central transverse section o-f my improved device.

Referring to the drawing, the improved blower' comprises a casing 1 anda rotatable member 2 mounted therein on a shaft 11 rotatable by a motoror other suitable means in bearings 8, said rotatable member being shownin the present embodiment as a hollow rotor composed of co-operatingdished side members provided with outlet openings 3 arranged adjacent tothe periphery thereof. rlhe casing 1 also has an outlet 4l preferablyadjacent to the periphery of the rotor 2 or at a point or place in thewall of the casing 1 wht-re a predetermined pressure is ei'i'ected byoperation of the rotor. rlhe gas or other tiuil te be commesse; isintroduced into the rotor through a conduit 5 in shaft ll having anopening G outside of the casing 1 and an opening 7 inside the rotor 2and communicating with the interior thereof and with the outlets 3.Packing 9 surrounding said shaft is held in place by caps 1t).

The rotor 2 is secured on shaft 11 by any suitable means such as ashoulder 12 at one sde of the rotor and a nut- 13 at the other side andthreaded on said shaft, one side of the rotor being spaced from theshoulder 12 by a spacing member 1 4'. The walls or dished side membersof the'irotor are maintained in spaced relation by a centrallypositioned spacer 15 provided with passages 16 communicating withtransverse passages 17 in the shaft 11 which in turn communicates withlongitudinal conduit G therein. A. spacer 18 is interposed'between anouter portion of the rotor 2 and the nut 13. The dished members formingthe walls of the rotor are joined at or near their peripheries in anysuitable manner asfby crimping, Welding or the like.

Serial No. 172,502.

In operation', if it is des'red to compress air for example, it will beadmitted through the conduit 5 into the interior of the rotor 2. Thelatter will rotate at the required speed and, by operation ofcentrifugal force, the air therein will be discharged through the outletopenings 3 into the casing 1 thereby building up pressure therein. Boththe inlet conduit and the outlet opening of the casing will becontrolled by valves or other' suitable devices, depending on theresults desir-ed in connecton with the use of the machine.

One use to which a blower of the type hereinabove described has beensuccessfully applied is in connection with a specific gravitydetern'iining apparatus in which it was des'red to measure directly thespecific gravity ofa gas. ln this device two blowers were mounted tooperate at the same speed and in such a way with respect to otherinstrumentalities that the pressure developed by the gas blower dividedby the pressure developed by the air blower would be a measure of thespeciiic gravity of the gas. ln such an instrument, it is desirable forob us reasons to obtain the gas and air pressures with a minimum ofturbulence and heat in the blower. lt is believed that a vblower ofthetype Vhereinabove described may advantageously be applied to other uses.

Having thus described my invention, what 1 claim as new and desire tosecure by Letters Patent is:

A rotor for blowers and the like, comprising a hollow shaft, a pair ofopposed wall forming members mounted thereon and provided withpeirpheral openings and arranged with their peripheral edges inclinedtoward each other and with portions of the peripheral edge of one walloverlapping and bent down over the peripheral edge of said other wall,and a spacer centrally disposed between said walls and having` a conduitpositioned to afford communication between the recess in said hollowshaft and the vinterior of the blower.

In testimony whereof, I have signed my name to this speciiication this2nd day of March, 1927.

GARRETT B, LINDERMAN, JR.

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